Answers created by Kayla

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• How many atoms are there in 0.45 mol of aluminium?
  
• What is the molarity of a solution that contains 0.00372 moles hydrochloric acid in #2.39 times 10^2# liters of solution?
  
• Zirconium has an atomic number of 40. How many neutrons are there in an isotope of zirconium-92?
  
• Question #1a111
  
• What percentage does oxygen make up in the compound #MgSO_4#?
  
• How do you convert 3 miles to yards?
  
• What is the formula weight of #Mg(BrO_4)_2#?
  
• How do you solve #lnx=-7#?
  
• How do you solve #ln4x=1#?
  
• How do you solve #lnx=-3#?
  
• How do you solve #ln2x=2.4#?
  
• How do you solve #12-12n=48#?
  
• How do you simplify #2^4*2^5#?
  
• A container has a volume of #3 L# and holds #16 mol# of gas. If the container is expanded such that its new volume is #5 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?
  
• Question #79071
  
• Question #d21dd
  
• Question #dc60d
  
• A container with a volume of #7 L# contains a gas with a temperature of #420^o C#. If the temperature of the gas changes to #570 ^o K# without any change in pressure, what must the container's new volume be?
  
• How do you simplify #w^-4timesw^7#?
  
• How do you simplify #y^5timesy^2#?
  
• How do you simplify #5^2times5^3#?
  
• How do you simplify #500^0#?
  
• What is the mass percent of hydrogen for #C_3H_5OH#?
  
• What the mass percent of aluminum in #Al(OH)_3#?
  
• A volume of 1500 milliliters is equal to how many liters?
  
• What charge does a proton have?
  
• If #13/4 L# of a gas at room temperature exerts a pressure of #16 kPa# on its container, what pressure will the gas exert if the container's volume changes to #3/8 L#?
  
• How do you solve #-2r - 11= 11#?
  
• How do you solve #(3k-7)/5=16#?
  
• The mass of a moon rock is 3.5 kilograms. What is the mass of the moon rock in grams?
  
• How many molecules are in 2.00 moles of #NO_2#?
  
• What is 18yd converted to feet?
  
• How do you solve #5y+13=18#?
  
• How do you solve #-10v-6=3#?
  
• How do you solve #4m-3=2#?
  
• How do you solve #12y+8=10#?
  
• What is Le Chatelier's principle in chemistry?
  
• Fish can swim in depths as deep as 9.5 km. How many meters is this? How many mm?
  
• How many millimeters are in an inch?
  
• A regulation volleyball can weigh anywhere from 260 grams to 280 grams. In ounces, what is the least a volleyball can weigh?
  
• The most a bowling ball can weigh is 7,258 grams. What is the most it can weigh when measured in pounds?
  
• How do you convert 23 kilometers to meters?
  
• How do you solve #-9k+3=4#?
  
• How do you solve #11x-5=-14#?
  
• How do you solve #100=1.5x+55#?
  
• Question #0262a
  
• What is the molar mass of ammonium carbonate?
  
• How do you calculate the formula mass for each of the following compounds? (a) #C_6H_12O_6# (b) #Fe(NO_3)_3#?
  
• A container has a volume of #12 L# and holds #14 mol# of gas. If the container is compressed such that its new volume is #7 L#, how many moles of gas must be released from the container to maintain a constant temperature and pressure?
  
• If #8 L# of a gas at room temperature exerts a pressure of #45 kPa# on its container, what pressure will the gas exert if the container's volume changes to #9 L#?
  
• If #18 L# of a gas at room temperature exerts a pressure of #36 kPa# on its container, what pressure will the gas exert if the container's volume changes to #14 L#?
  
• A circle has a radius of 6 cm. What is its circumference?
  
• What is the area of a circle with a radius of 3 cm?
  
• How do you solve #x^2+3x+2=0# using the quadratic formula?
  
• How do you determine the molar mass of #He#?
  
• What is the molar mass of iron (III) oxide (#Fe_2O_3#)?
  
• How do you solve #2r^2+r-14=0# using the quadratic formula?
  
• How do you solve the equation #2x^2+5x-3=0# by using the quadratic formula?
  
• How do you solve #2x^2+11x-6=0# using the quadratic formula?
  
• If #17/6 L# of a gas at room temperature exerts a pressure of #24 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5/4 L#?
  
• How do you calculate the atomic mass of copper?
  
• Question #aea28
  
• How do you explain Le Chatelier's principle?
  
• If #9/7 L# of a gas at room temperature exerts a pressure of #8 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5/4 L#?
  
• Question #1414a
  
• A sample of neon has a volume of 75.8 at STP. How many moles are present?
  
• Question #8edc0
  
• What is the formula mass for #Sr(NO_3)_2#?
  
• If a 40 kg rock fell from a cliff and had a speed of 31.3 m/s when it hit the ground, what is its kinetic energy?
  
• Question #64165
  
• A gas is placed in a piston whose volume was #19.7*L# under a pressure of #0.95*atm#. If the volume were reduced to #22.5*L#, what resultant pressure would develop?
  
• How do you find the atomic mass of calcium?
  
• A sample of glass that has a mass of 6.0 g gives off 12 J of heat. If the temperature of the sample changes by 4.0°C during this change, what is the specific heat of the glass?
  
• What is the temperature change in 224 g of water upon the absorption of 55 kJ of heat, the specific heat of water is 4.18 J/g °C?
  
• Question #d638b
  
• A container has a volume of #3 L# and holds #18 mol# of gas. If the container is expanded such that its new volume is #6 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?
  
• What mass of water will change its temperature by 3 C when 525 J of heat is added to it? The specific heat of water is 4-.8 J/gC
  
• How would you explain isothermal expansion?
  
• What is isothermal expansion?
  
• Question #26591
  
• In an exergonic reaction, what is the #DeltaG#?
  
• The [#H^+#] (#H^+# concentration) in a solution is #1 x 10^-8# M. What is the pH of the solution?
  
• A container has a volume of #18 L# and holds #18 mol# of gas. If the container is expanded such that its new volume is #54 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?
  
• What is the density of a #36# #g# object with a volume of #15# #cm^3#?
  
• What is the molar mass of helium?
  
• How do you calculate the density of a material that has a mass of 52.457 g and a volume of 13.5 cm^3?
  
• A container has a volume of #2 L# and holds #1 mol# of gas. If the container is expanded such that its new volume is #12 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?
  
• A container has a volume of #5 L# and holds #1 mol# of gas. If the container is expanded such that its new volume is #12 L#, how many moles of gas must be injected into the container to maintain a constant temperature and pressure?
  
• If #18 L# of a gas at room temperature exerts a pressure of #15 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5 L#?
  
• A container has a volume of #19 L# and holds #6 mol# of gas. If the container is compressed such that its new volume is #5 L#, how many moles of gas must be released from the container to maintain a constant temperature and pressure?
  
• If #24 L# of a gas at room temperature exerts a pressure of #8 kPa# on its container, what pressure will the gas exert if the container's volume changes to #8 L#?
  
• If #8 L# of a gas at room temperature exerts a pressure of #28 kPa# on its container, what pressure will the gas exert if the container's volume changes to #7 L#?
  
• What is the density of a substance with a mass of 5 g and a volume of 10cm^3?
  
• If #2 L# of a gas at room temperature exerts a pressure of #28 kPa# on its container, what pressure will the gas exert if the container's volume changes to #7 L#?
  
• A container has a volume of #21 L# and holds #27 mol# of gas. If the container is compressed such that its new volume is #18 L#, how many moles of gas must be released from the container to maintain a constant temperature and pressure?
  
• If #9 L# of a gas at room temperature exerts a pressure of #15 kPa# on its container, what pressure will the gas exert if the container's volume changes to #5 L#?
  
• If #2 L# of a gas at room temperature exerts a pressure of #35 kPa# on its container, what pressure will the gas exert if the container's volume changes to #12 L#?
  
• The mass of a diamond is #1.76# #g#. The volume is #0.5# #cm^3#. What is the density of the diamond?
  
• How do you solve #p+ 19= 6#?
  
• How do you solve #15+ r = 71#?
  
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